Bahrain bomb blast wounds policeman

The ministry says the blast happened Friday in the village of Daih. The same area was the scene of a bomb attack in March that killed three policemen.

An investigation into the blast is ongoing.

Bahrain is an island nation in the Persian Gulf that is home to the U.S. navy's Fifth Fleet. It has faced three years of unrest following an uprising led by its Shiite Muslim community demanding greater rights from the Sunni monarchy.

Anti-government elements increasingly have been using homemade bombs against security forces.